Spark-arrester



PATENT OFFICE.

JACOB HAISlL-OFDE KALB, ILLINOIS.

SPARK-ARRESTER.

SPECIFICATION forming part of Letters Patent No. 378,092. dated February 21, 1888.

Application tiled October 24, 1887. Serial No. 253.2605 (No model.)

To all whom/.it may concern.-

Be it known that I, JACOB HAISH, a citizen of the United States, residing at De Kalb, in

the county of De Kalb and State of Illinois,

have invented certain new and useful Improvements in Spark Arresters for Locomotives; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form a ,part of this specification.

My invention has reference toA certain improvements in locomotives, and has for its object the providing of certain apparatus and mechanism, by which the 'escape of sparks from the smoke-stack ot' such engine may be prevented.

In each section of the country railroads run through timber-land, in which in the fall of the year there is a large amount of dead leaves and other rubbish upon the4 ground, and in other cases there lie contiguous to the railroad-track fields of dry hay and grain-stubble, and almost invariably the right of way or sides of the track are covered more or less in the fall with dry weeds and grass. The draft in its progression throughV the locomotive-flue is so great as to-carry with thesmoke sparks or small particles of fire, which very frequently ignite the dry rubbish along the track, and from these ignitions large and destructive lires are iread. Itis obvious, also,A that there is dang rot` such sparkssetting tire to buildings located near the line of transit of the train. Various forms of spark-arresters have been devised and tried; but none of these have thus far proved a perfectsafeguard, asis evidenced by the constantly-recurring tires, caused as above described, sometimes continuing for days, andeven weeks, in the timbered portions of the country. One mode has been the seating transversely in the opening in the smoke-stack of one or more perforated horizontal partitions or sieves; but the interposition, in the path ,of the ascending smoke, of these horizontal sieves tends to impede the necessary draft of the furnace, and therefore their use can be adopted to a very limited eX- tent. This obstruction to the passage of the smoke has been sought to be obviated' or neutralized by discharging the eXhaust-steaminto the accumulating smoke in the flue or smoke stack, thereby forcibly ejecting the smoke; but this result has also the further effectof drivn ing more orless of the sparks forcibly through the interstices in said sieve-like partitions, and thereby causes in some degree the very .evil 5o which said sieves or partitions were designed to prevent.

In the drawing is shown a side elevation, somewhat in perspective,of a locomotive provided with my invention.

As the subject-matter ot' my invention is simply improvements upon or additions to any of the usual locomotives, I do not Adeem it nec-A essary to show or describe the latter, further thanwill render intelligible a description of 7o the location, construction, and operation of myinvention. Y

A isa locomotive provided with the usual horizontal boilers supported upon the drivingwheels B B and forward trucksC C.

D is the smoke-stack, consisting of the lower vertical portion, E, which has communication at its lower end with the forward end of the usual ilues under and in the boilers, and has the'central bend, F, toward the rear andthe 8o upper vertical portion, G. Near the upper end of the verticalportion G is centrally located an annular horizontal plate, H,.attached in any suitable way to the walls of the stack D, one mode being to connect the periphery 35 of the plate H -to the walls of the flue D by radiating arms. The plate II is of necessity of less diameter than the vertical oriticein the stack D, within which it is suspended, an annular opening around the plate H beingpro- 9o vided for the passage of the ascendingsmoke. Around the inner wall of the upper vertical portion, G, at about the plane of the bend F, is seated downwardly andinwardly projecting annular flanges J.

The smoke in its ascension from the furnace is first made to deflect by the horizontal por. tion Ff of the front wall of the stack D. ,A large proportion of the sparks which continue with the smoke upward within the annular roo flange J is by the latter arrested and thrown down upon the horizontal drawer K, leaving the perforated top K seated removably in the ue D directly below the plate H. Such of the sparks as pass through the flange J without contact with the latter are thrown against the under surface of the annular plate H, and by the latter arrested and thrown downward upon and through the perforated top K into the drawer K aforesaid.

L is a watertube having communication at its rear end in any suitable manner with the water in the usual water-tank carried in the tender, (not shown,) and projected in a substantially horizontal position along the side of the locomotive A to a point on the side ofthe latter below and in the same vertical transverse plane with the plate H. From thence the tube L is turned upward and inserted within the smoke-stack D in such position that its upper end is directly under and but a short distance from the plate H, and slightly higher than the highest water-mark in said tank. A

small pump, M, is located at any suitable point in thc tube L, and by means of steam carried thereto, in any of the usual modes, from the steam-boiler, operates to draw the water from the water-tank and discharge the same vertically through the small opening in the upper end of the tube L against the lower surface of the plate H, from which the water descends in a spray-like form down through the perforated top K into the drawer K, and serves to extinguish the cinders which may fall therein. In the bottom of the drawer K there are also formed smaller perforations, K2, which permit the water to pass on downward into the iilter N, seated beneath said drawer.

Unavo'idably some of the smallest particles of oinders carried in solution in the water pass through the lower perforated plate, K2, into the filter N, and the functibn of the latter is to remove from the water these smaller particles. The bottoni of the filter N has a funnel-like form, and at its lower projection communicates with the return water-tube O, which at its rear end discharges the returning water into the water-tank.

The water aforesaid is utilized in a twofold manner: first, to extinguish the sparks, before described, in the drawer K, and, seoondly, having been by its Contact with the heated sparks warmed to a certain degree, it serves, when returned to the water-tank, -to assist in raising the temperature of the water therein, preparatory to its use in the boiler or steam-generator.

rThe drawer K, as before mentioned, is inv serted removably in the rear wall of the stack D, and when filled with returning cinders can be readily removed, emptied, and replaced.

What I claim as my invention, and desire to secure by Letters Patent of the United States, 1s-

1. In combination with the usual locomotive, a smokestack, D, having a deflected or angular interior and provided with the horizontal wall F, the annular iiange J, aud the suspended plate H, substantially as shown, and for the purpose described.

2. In combination with the usual locomotive, a smoke-stack, D, bent horizontally at or near its central portion, and provided with the annular flange J and suspended interior plate, H, and the inlet water-pipe M, adapted to discharge the water in small quantities against the under surface of the plate H, substantially as shown, and for the purpose described.

3. In combination with the usual locomotive, a smokestack, D, provided with the sus pcnded interior plate, H, and injecting waterpipe M, adapted to discharge a continuous small stream of water against the lower surface of said plate, and the removable drawer K, having perforated upper and lower surfaces, K and K2, substantially as shown, and for the purpose described.

4. In combination'with the usual locomotive, a smoke-stack, D, provided with the interiorly-suspended plate H, and inductionpipe M, provided with means for discharging a continuous small stream of water against the under surface of said plate H, the drawer K, provided with the perforated top K and perforated bottom K2, the filter N, and return water-pipe O, substantially as shown, and` for the purpose described.

5. In combination with the usual locomotive, a smoke-stack, D, provided with the horizontal wall F and interior annular flange, J, the interior plate, H, the discharge water-pipe M,adapted to deliver acontinuous small stream of water against the under surface of said plate H, the drawer K, provided with the perforated top K and perforated bottom K. the filter N, and return water-pipe O, substantially as shown, and for the purpose described.

In testimony whereof I aix my signature in presence of two witnesses.

CHARLEs H. SALIsBURY, SAM l?. BRADSHAW. 

